EP0902165A3 - Schlagfeste hohle Schaufel - Google Patents

Schlagfeste hohle Schaufel Download PDF

Info

Publication number: EP0902165A3
Authority: EP; European Patent Office
Prior art keywords: airfoil; impact resistant; resistant hollow; hollow airfoils; impact
Prior art date: 1997-09-10
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP98307322A

Other languages

English (en)

French (fr)

Other versions

EP0902165B1 (de

EP0902165A2 (de

Inventor

Marc Samit

Paul W. Duesler

Douglas A. Welch

Patrick D. Markham

Allan R. Penda

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

RTX Corp

Original Assignee

United Technologies Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1997-09-10

Filing date

1998-09-10

Publication date

2000-07-05

1998-09-10 Application filed by United Technologies Corp filed Critical United Technologies Corp

1999-03-17 Publication of EP0902165A2 publication Critical patent/EP0902165A2/de

2000-07-05 Publication of EP0902165A3 publication Critical patent/EP0902165A3/de

2004-11-24 Application granted granted Critical

2004-11-24 Publication of EP0902165B1 publication Critical patent/EP0902165B1/de

2018-09-10 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000007787 solid Substances 0.000 abstract 1

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Architecture (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Turbine Rotor Nozzle Sealing (AREA)

EP98307322A 1997-09-10 1998-09-10 Schlagfeste hohle Schaufel Expired - Lifetime EP0902165B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US927680		1997-09-10
US08/927,680 US6048174A (en)	1997-09-10	1997-09-10	Impact resistant hollow airfoils

Publications (3)

Publication Number	Publication Date
EP0902165A2 EP0902165A2 (de)	1999-03-17
EP0902165A3 true EP0902165A3 (de)	2000-07-05
EP0902165B1 EP0902165B1 (de)	2004-11-24

Family

ID=25455084

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98307322A Expired - Lifetime EP0902165B1 (de)	1997-09-10	1998-09-10	Schlagfeste hohle Schaufel

Country Status (4)

Country	Link
US (1)	US6048174A (de)
EP (1)	EP0902165B1 (de)
JP (1)	JP3017477B2 (de)
DE (1)	DE69827727T2 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6364616B1 (en) *	2000-05-05	2002-04-02	General Electric Company	Submerged rib hybrid blade
US7334333B2 (en)	2004-01-26	2008-02-26	United Technologies Corporation	Method for making a hollow fan blade with machined internal cavities
US7070391B2 (en) *	2004-01-26	2006-07-04	United Technologies Corporation	Hollow fan blade for gas turbine engine
US6994525B2 (en) *	2004-01-26	2006-02-07	United Technologies Corporation	Hollow fan blade for gas turbine engine
US6994524B2 (en) *	2004-01-26	2006-02-07	United Technologies Corporation	Hollow fan blade for gas turbine engine
GB0425137D0 (en) *	2004-11-13	2004-12-15	Rolls Royce Plc	Blade
US7476086B2 (en) *	2005-04-07	2009-01-13	General Electric Company	Tip cambered swept blade
US7374403B2 (en)	2005-04-07	2008-05-20	General Electric Company	Low solidity turbofan
GB0516036D0 (en)	2005-08-04	2005-09-14	Rolls Royce Plc	Aerofoil
US7458780B2 (en)	2005-08-15	2008-12-02	United Technologies Corporation	Hollow fan blade for gas turbine engine
US7993105B2 (en)	2005-12-06	2011-08-09	United Technologies Corporation	Hollow fan blade for gas turbine engine
DE102006051813A1 (de) *	2006-11-03	2008-05-08	Mtu Aero Engines Gmbh	Schaufel für einen Verdichter oder eine Turbine eines Flugtriebwerks, Flugtriebwerk mit einer solchen Schaufel sowie Verfahren zum Beschichten einer Schaufel eines Flugtriebwerks
US7857588B2 (en) *	2007-07-06	2010-12-28	United Technologies Corporation	Reinforced airfoils
GB0823347D0 (en) *	2008-12-23	2009-01-28	Rolls Royce Plc	Test blade
GB0903613D0 (en) *	2009-03-04	2009-04-08	Rolls Royce Plc	Method of manufacturing an aerofoil
US8192169B2 (en) *	2010-04-09	2012-06-05	Frederick W Piasecki	Highly reliable, low cost wind turbine rotor blade
US8807925B2 (en) *	2011-09-23	2014-08-19	United Technologies Corporation	Fan blade having internal rib break-edge
US8801367B2 (en) *	2011-09-23	2014-08-12	United Technologies Corporation	Hollow fan blade channel configuration to reduce stress
US8807924B2 (en) *	2011-09-23	2014-08-19	United Technologies Corporation	Fan blade channel termination
CN103375433A (zh) *	2012-04-19	2013-10-30	中航商用航空发动机有限责任公司	空心风扇叶片以及其设计制造方法
US9121286B2 (en)	2012-04-24	2015-09-01	United Technologies Corporation	Airfoil having tapered buttress
CN102734218B (zh) *	2012-06-27	2014-10-22	中国航空工业集团公司沈阳发动机设计研究所	一种宽弦空心叶片结构设计方法
WO2014055113A1 (en) *	2012-10-01	2014-04-10	United Technologies Corporation	Geared turbofan with high fan rotor power intensity
WO2014055122A1 (en) *	2012-10-01	2014-04-10	United Technologies Corporation	Geared turbofan high gearbox power density
US9568009B2 (en)	2013-03-11	2017-02-14	Rolls-Royce Corporation	Gas turbine engine flow path geometry
US10267156B2 (en)	2014-05-29	2019-04-23	General Electric Company	Turbine bucket assembly and turbine system
US10458426B2 (en)	2016-09-15	2019-10-29	General Electric Company	Aircraft fan with low part-span solidity
US11168566B2 (en) *	2016-12-05	2021-11-09	MTU Aero Engines AG	Turbine blade comprising a cavity with wall surface discontinuities and process for the production thereof
US12345177B2 (en)	2023-02-20	2025-07-01	General Electric Company	Turbine engine with composite airfoils
US12331661B2 (en)	2023-02-20	2025-06-17	General Electric Company	Turbine engine with composite airfoils
US12352284B2 (en)	2023-02-20	2025-07-08	General Electric Company	Turbine engine with composite airfoils
CN116538144B (zh) *	2023-04-13	2025-12-09	中国航空发动机研究院	一种风扇空心导流叶片、制造方法及航空发动机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5253824A (en) *	1991-04-16	1993-10-19	General Electric Company	Hollow core airfoil
US5297937A (en) *	1991-08-23	1994-03-29	Mitsubishi Jukogyo Kabushiki Kaisha	Hollow fan moving blade
US5343619A (en) *	1992-09-02	1994-09-06	Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A."	Hollow blade for a turbomachine and method of manufacturing said blade
US5439354A (en) *	1993-06-15	1995-08-08	General Electric Company	Hollow airfoil impact resistance improvement
US5584660A (en) *	1995-04-28	1996-12-17	United Technologies Corporation	Increased impact resistance in hollow airfoils

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1176673B (it) *	1983-09-23	1987-08-18	Gen Electric	Pala cava per turbomacchina
US4594761A (en) *	1984-02-13	1986-06-17	General Electric Company	Method of fabricating hollow composite airfoils
GB2167500B (en) *	1984-11-20	1988-05-18	Rolls Royce	Rotor aerofoil blade containment
US5129787A (en) *	1991-02-13	1992-07-14	United Technologies Corporation	Lightweight propulsor blade with internal spars and rigid base members
US5429877A (en) *	1993-10-20	1995-07-04	The United States Of America As Represented By The Secretary Of The Air Force	Internally reinforced hollow titanium alloy components
US5419040A (en) *	1994-04-29	1995-05-30	United Technologies Corporation	Hollow fan blade fabrication
GB2293631B (en) *	1994-09-30	1998-09-09	Gen Electric	Composite fan blade trailing edge reinforcement

1997
- 1997-09-10 US US08/927,680 patent/US6048174A/en not_active Expired - Lifetime
1998
- 1998-09-02 JP JP10247893A patent/JP3017477B2/ja not_active Expired - Fee Related
- 1998-09-10 EP EP98307322A patent/EP0902165B1/de not_active Expired - Lifetime
- 1998-09-10 DE DE69827727T patent/DE69827727T2/de not_active Expired - Lifetime

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5253824A (en) *	1991-04-16	1993-10-19	General Electric Company	Hollow core airfoil
US5297937A (en) *	1991-08-23	1994-03-29	Mitsubishi Jukogyo Kabushiki Kaisha	Hollow fan moving blade
US5343619A (en) *	1992-09-02	1994-09-06	Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A."	Hollow blade for a turbomachine and method of manufacturing said blade
US5439354A (en) *	1993-06-15	1995-08-08	General Electric Company	Hollow airfoil impact resistance improvement
US5584660A (en) *	1995-04-28	1996-12-17	United Technologies Corporation	Increased impact resistance in hollow airfoils

Also Published As

Publication number	Publication date
EP0902165B1 (de)	2004-11-24
EP0902165A2 (de)	1999-03-17
DE69827727D1 (de)	2004-12-30
US6048174A (en)	2000-04-11
JP3017477B2 (ja)	2000-03-06
DE69827727T2 (de)	2005-03-31
JPH11132004A (ja)	1999-05-18

Legal Events

Date	Code	Title	Description
1999-01-29	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1999-03-17	AX	Request for extension of the european patent	Free format text: AL;LT;LV;MK;RO;SI
2000-05-19	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
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2000-11-22	17P	Request for examination filed	Effective date: 20000925
2001-03-14	AKX	Designation fees paid	Free format text: DE FR GB
2002-07-10	17Q	First examination report despatched	Effective date: 20020528
2004-03-24	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2004-07-23	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2004-10-08	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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